Python Selenium WebDriver简明指南

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from selenium import webdriver

CHROME_DRIVER_PATH = '../resources/chromedriver.exe'
driver = webdriver.Chrome(CHROME_DRIVER_PATH)
driver.get('https://www.google.com')

q = driver.find_element_by_name('q')
q.send_keys('webdriver')
q.submit()

print driver.title
driver.close()

刷新页面

driver.refresh()

获得当前页面URL

driver.current_url

获取标签(如：p、div、span等)包含的文本

element.text

等待元素动态加载完成

显式方法：

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Firefox()
driver.get("http://somedomain/url_that_delays_loading")
try:
    element = WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.ID, "myDynamicElement"))
    )
finally:
    driver.quit()

隐式方法：

from selenium import webdriver

driver = webdriver.Firefox()
driver.implicitly_wait(10) # seconds
driver.get("http://somedomain/url_that_delays_loading")
myDynamicElement = driver.find_element_by_id("myDynamicElement")

处理alert弹框

try:
    WebDriverWait(driver, 3).until(EC.alert_is_present())
    alert = driver.switch_to_alert()
    alert.dismiss() #选择"否"，选择"是"的方法是alert.accept()
except:
    pass

参考文档：Selenium with Python